A librarian that serves specific schools, departments, and programs to support the teaching, learning and research needs of faculty and students in these units. Liaison librarians are also known as subject librarians.
Library of Congress Subject Headings (LCSH)
The LCSH is an index of subject headings, maintained by the United States Library of Congress, for use in bibliographic records. These Subject Headings function like subject terms and help you locate information on a specific topic.
A scholarly paper which includes current knowledge on a particular topic. Literature reviews, or "lit reviews" use secondary sources and do not report new or original experimental work.
In a library, a loan is the act of lending (or letting people borrow) our materials for a certain period of time. The typical loan period for an undergraduate to borrow a book is 45 days: http://ulib.iupui.edu/services/loan_periods.